MO HB2373

Allows political subdivisions to revise tax rates based on changes in assessed valuation of real property subclasses and personal property, excluding new construction and improvements.

Permits political subdivisions that received voter approval for tax increases after August 27, 2008 to levy rates that collect substantially the same revenue as would be derived from the voter-approved rate, adjusted for consumer price index increases.

For political subdivisions levying separate tax rates on different property subclasses, establishes a "blended rate" calculation method when voters approve separate or differentially increased rates on different property classes.

Requires the state auditor to review tax rate filings within 15 days and allows the auditor to recalculate rates if non-compliant; authorizes the attorney general to seek injunctive relief against violative tax rates.

Allows taxpayers to file complaints with the prosecuting attorney or bring class action lawsuits against taxing authorities that fail to comply with tax rate revision requirements, with courts able to award reasonable attorney's fees and costs.